This question would be directed to the expert. I have a Bell Boy by Mills, and your price guide shows a Bell Boy as a machine that has 3 reels with the bell-fruit-gum style of reels. Mine, however has numbers and has an apparatus at the top of the machine linked to the mechanism.
Apparently, there are two different styles of Bell Boy machines, one without the 3 digit apparatus and one (mine) with it.
How would I find out more info such as advertising of the original machine? Possibly the one I own has been upgraded - I don't know.
Thanks,
John